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- Order number: 7TM0360A
- Content: 100 µl
- Host: Rabbit
Threonine344/Serine347 (T344/S347) is a major phosphorylation site of the NK1 receptor. The pT344/pS347-NK1 antibody detects phosphorylation in response to high-efficacy agonists. T344/S347 phosphorylation is a key regulator of NK1 desensitization, β-arrestin recruitment and internalization.
Alternative Names | NK1, SPR, TACR1, Neurokinin Receptor 1, Substance P Receptor |
IUPHAR Target ID | 360 |
UniProt ID | P25103 |
Western Blot (WB) | 1:1000 |
Immunocytochemistry (ICC) | - |
Species Reactivity | Human |
Host / Isotype | Rabbit / IgG |
Class | Polyclonal |
Immunogen | A synthetic phosphopeptide derived from human NK1 around the phosphorylation site Thr344/Ser347. |
Form | Liquid |
Purification | Antigen affinity chromatography |
Storage buffer | Dulbecco's PBS, pH 7.4, with 150 mM NaCl, 0.02% sodium azide |
Storage conditions | short-term 4°C, long-term -20°C |
Figure 1. Agonist-induced Threonine344/Serine347 phosphorylation of NK1 Receptor. Upper panel, HEK293 cells stably expressing the NK1-Receptor (NK1) were either not exposed or exposed to 1 µM of specific NK1-Receptor agonist Substance P for 30 minutes. Cells were lysed and immunoblotted with the anti-pT344/pS347-NK1 antibody (7TM0360A) at a dilution of 1:1000. Lower panel, blot was stripped and reprobed with the phosphorylation-independent anti-NK1 antibody (7TM0360N) at a dilution of 1:1000 to confirm equal loading of the gel.
Blum NK, Schaffner A, Drube J, Nagel F, Reinscheid RK, Hoffmann C, Schulz S. Rapid elucidation of agonist-driven regulation of the neurokinin 1 receptor using a GPCR phosphorylation immunoassay. Eur J Pharmacol. 2024 Jun 15;973:176587. doi: 10.1016/j.ejphar.2024.176587. Epub 2024 Apr 19. PMID: 38642667.